// Copyright 2020 Google LLC
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package com.google.firebase.installations.time;

/**
 * Interface simulating https://developer.android.com/reference/java/time/Clock offered by Android
 * in API 26. It provides the current value of "now" to allow injecting time as a dependency for
 * testing.
 *
 * @hide
 */
public interface Clock {
  /** Returns the current time in milliseconds since EPOCH in UTC. */
  long currentTimeMillis();
}
